CONTROL REGISTERS S3C8245/P8245/C8249/P8249
4-6
BTCON — Basic Timer Control Register D3H Set 1
Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0
nRESET Value 00000000
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
Addressing Mode Register addressing mode only
.7–.4 Watchdog Timer Function Disable Code (for System Reset)
1010Disable watchdog timer function
Others Enable watchdog timer function
.3–.2 Basic Timer Input Clock Selection Bits
0 0 fxx/4096 (3)
0 1 fxx/1024
1 0 fxx/128
1 1 fxx/16
.1 Basic Timer Counter Clear Bit (1)
0No effect
1Clear the basic timer counter value
.0 Clock Frequency Divider Clear Bit for Basic Timer and Timer/Counters (2)
0No effect
1Clear both clock frequency dividers
NOTES:
1. When you write a “1” to BTCON.1, the basic timer counter value is cleared to "00H". Immediately following the write
operation, the BTCON.1 value is automatically cleared to “0”.
2. When you write a "1" to BTCON.0, the corresponding frequency divider is cleared to "00H". Immediately following the
write operation, the BTCON.0 value is automatically cleared to "0".
3. The fxx is selected clock for system (main OSC. or sub OSC.).